Combination lock



FIG. 1 is a top plan view of a combination lock embodying my new design;

FIG. 2 is a side elevational view thereof as seen from the bottom of FIG. 1;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof as seen from the top of FIG. 1;

FIG. 5 is an end elevational view thereof as seen from the left in FIG. 1;

FIG. 6 is an end elevational view thereof as seen from the right of FIG. 1;

FIG. 7 is a perspective view thereof with the hasp in open condition. 

The ornamental design for a combination lock, as shown and described. 